正确的打Log方法：
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.v(TAG, "Internal storage is ok.");
}
adb中setprop log.tag.CalendarProvider2 VERBOSE
CalendarProvider2 == TAG
找LOG ：adb logcat -b main -b radio -b system -v time >log.txt
如果要抓Message的话，还要加上adb shell setprop log.tag.Mms:transaction VERBOSE